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公开(公告)号：US11940744B2
公开(公告)日：2024-03-26
申请号：US17552637
申请日：2021-12-16
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kazuyoshi Hagiwara , Tomoaki Yoshioka , Yoko Miyamoto , Kazuki Kishi , Toshiaki Baba
CPC classification number: G03G15/1615 , G03G15/0136 , G03G15/0189 , G03G15/167 , G03G15/205 , G03G2215/0193 , G03G2215/1695
Abstract: A transfer device includes a transfer drum that rotates in conjunction with a fixing roller, a transfer belt that transfers an image onto a medium while rotating along with the transfer drum in a state where the medium is nipped between the transfer belt and the transfer drum, a pressing member that is disposed in a space enclosed by the transfer belt, and a switching unit that moves the pressing member and switches between a pressed state in which the transfer belt is pressed against the transfer drum and a separated state in which the transfer belt is separated from the transfer drum.
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公开(公告)号：US11579541B2
公开(公告)日：2023-02-14
申请号：US17356967
申请日：2021-06-24
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Koichiro Yuasa , Toshiaki Baba , Yoko Miyamoto , Takeshi Yasuda , Hirotaka Tanaka , Masaaki Takahashi , Tomoaki Yoshioka
Abstract: An image forming apparatus includes: an image holder configured to hold an image formed using an electrographic process; a transfer body that faces the image holder and is configured to contact the image holder while rotating to form a secondary transfer region; an application unit configured to apply a voltage for charging the secondary transfer region; and a charge unit that faces a region other than the secondary transfer region of the transfer body and is configured to charge a surface of the transfer body with a polarity opposite to an applied voltage of the application unit.
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公开(公告)号：US11474459B2
公开(公告)日：2022-10-18
申请号：US17370491
申请日：2021-07-08
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Yoko Miyamoto , Kazuyoshi Hagiwara , Tomoaki Yoshioka , Toshiaki Baba , Kazuki Kishi , Shinji Okuyama
Abstract: A transfer device includes: a transfer member to which a voltage is applied by a power supply device to generate a transfer electric field for transferring a developer image to a recording medium; a transfer cylinder having a recess in which a retaining member that retains a leading end portion of the recording medium is disposed, the transfer electric field being generated between the transfer cylinder and the transfer member at a transfer position; a shunt circuit by which the voltage applied to the transfer member is shunted to a reference potential point; and an operation stopping mechanism that starts and stops an operation of the shunt circuit in response to rotation of the transfer cylinder, the operation being started when the recess reaches the transfer position and stopped when the recess leaves the transfer position.
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公开(公告)号：US11385574B2
公开(公告)日：2022-07-12
申请号：US17334093
申请日：2021-05-28
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Toshiaki Baba , Yoko Miyamoto , Koichiro Yuasa , Tomoaki Yoshioka
IPC: G03G15/16
Abstract: A rotation device includes: a rotary body having a recess in an outer peripheral surface thereof; and a brush configured to come into contact with the outer peripheral surface of the rotary body to remove a foreign matter adhering to the outer peripheral surface, in which the brush is separated from the outer peripheral surface of the rotary body in a state where rotation of the rotary body is stopped.
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公开(公告)号：US20220107592A1
公开(公告)日：2022-04-07
申请号：US17320937
申请日：2021-05-14
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Koichiro Yuasa , Kazuki Kishi , Yoko Miyamoto , Toshiaki Baba , Tomoaki Yoshioka
Abstract: An image forming apparatus includes: a rotating body having a recess in an outer peripheral surface thereof; a transfer portion that is in contact with the outer peripheral surface of the rotating body, the transfer portion being configured to transfer a toner to a recording medium passing between the rotating body and the transfer portion; and a brush configured to come into contact with the outer peripheral surface of the rotating body to remove a toner adhering to the outer peripheral surface.
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Patent Agency Ranking
公开(公告)号：US11262675B2
公开(公告)日：2022-03-01
申请号：US16290972
申请日：2019-03-04
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Masaaki Takahashi , Yoko Miyamoto , Noboru Hirakawa , Yoshiyuki Tominaga
Abstract: An image forming apparatus includes an image holding unit that holds a toner image, a transfer unit that transfers the toner image held by the image holding unit onto a medium in a transfer region, a reduction unit that is positioned further upstream than the transfer region and that reduces an electrical resistance of a first surface of the medium, the first surface being opposite to a second surface of the medium onto which an image is to be transferred, and a control unit that controls the reduction unit in accordance with a type of a medium to be used in such a manner that the electrical resistance of the first surface does not exceed a predetermined range.
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公开(公告)号：US11966176B2
公开(公告)日：2024-04-23
申请号：US17530153
申请日：2021-11-18
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Hirotaka Tanaka , Tomoaki Yoshioka , Yoko Miyamoto , Toshiaki Baba , Koichiro Yuasa , Kazuyoshi Hagiwara , Kei Tanaka
IPC: G03G15/16
CPC classification number: G03G15/162 , G03G15/161
Abstract: A transfer member includes: an inner layer; and an outer layer that is adhered to the inner layer and has a hardness lower than a hardness of the inner layer.
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公开(公告)号：US11768450B2
公开(公告)日：2023-09-26
申请号：US17871563
申请日：2022-07-22
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kazuki Kishi , Koichiro Yuasa , Kazuyoshi Hagiwara , Kei Tanaka , Tomoaki Yoshioka , Toshiaki Baba , Yoko Miyamoto , Hirotaka Tanaka
CPC classification number: G03G15/1615
Abstract: A drum member includes: a substantially cylindrical drum body having a hollow part extending in an axial direction; a sheet member wound on the drum body; an adjusting mechanism configured to adjust tension in the sheet member, the adjusting mechanism including a moving member that holds an end of the sheet member in a circumferential direction and moves in a depth direction of the hollow part, and a fixing member that fixes the moving member to the drum body; and one or more positioning members that position the moving member such that the moving member does not move in the circumferential direction of the drum body when the moving member is fixed with the fixing member.
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公开(公告)号：US11609514B2
公开(公告)日：2023-03-21
申请号：US17527886
申请日：2021-11-16
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Koichiro Yuasa , Kazuyoshi Hagiwara , Kei Tanaka , Tomoaki Yoshioka , Toshiaki Baba , Yoko Miyamoto , Hirotaka Tanaka
Abstract: A transfer member includes: an inner layer; an outer layer provided on an outer periphery of the inner layer; and a surface layer provided on an outer periphery of the outer layer, both end portions of the surface layer in circumferential directions extending in the circumferential directions from both end portions of the outer layer in the circumferential directions.
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公开(公告)号：US11579555B2
公开(公告)日：2023-02-14
申请号：US17319609
申请日：2021-05-13
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Kazuki Kishi , Kazuyoshi Hagiwara , Yoko Miyamoto , Toshiaki Baba
Abstract: A cylinder member includes: a cylinder body having a cylindrical shape; a sheet member wound on the cylinder body; a first attachment portion provided at one end portion of the sheet member in a circumferential direction, the first attachment portion being detachably attached to the cylinder body; and a second attachment portion provided at the other end portion of the sheet member in the circumferential direction, the second attachment portion being detachably attached to the cylinder body.
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